KeyCDN

JANUARY 31, 2019

If you are experiencing any issues with the new POP in Bucharest, check our status page to verify if we are performing any scheduled maintenance or open a support request with us directly.

Internet 48

Internet Internet Ecommerce Speed 48

The Morning Paper

OCTOBER 4, 2020

The study is based on one of the world’s first commercial 5G network deployments (launched in April 2019), a 0.5 Coverage is assessed with a walk-test (4-5km/h) over all road segments on the campus, monitoring the physical-layer information from both 5G and 4G at each location. km university campus. Let’s jump in!

Energy 130

Energy Latency Performance Network 130

Jos

APRIL 5, 2018

Componentizing generally makes testing and maintenance easier. Here I’m rendering a test page (you can see the source here ) using Google Webmaster Tools’ “Fetch as Google”. Rendering [a test page]([link] using Google Webmaster Tools' "Fetch as Google". This way, the children components don’t need to know about the media query.

Code 130

Code Performance Google Media 130

The Morning Paper

SEPTEMBER 24, 2019

USENIX Security Symposium 2019. There are four main parts to the story here: The testing environment that runs apps in a ‘honeypot’ and figures out which of those apps are leaking data they don’t have permission to obtain. 50 ways to leak your data: an exploration of apps’ circumvention of the Android permissions system Reardon et al.,

Systems 74

Systems Traffic Network Google 74

KeyCDN

SEPTEMBER 12, 2019

Most of you have probably seen the following Google PageSpeed Insights optimization suggestion at one point or another when running a speed test: By compressing and adjusting the size of … you can save 14.2 Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8

Social Media 106

Social Media Media Google Website 106

The Netflix TechBlog

OCTOBER 18, 2019

theme of the ML Platform meetup hosted at Netflix, Los Gatos on Sep 12, 2019. Contextual and Multi-armed Bandits enable faster and adaptive alternatives to traditional A/B Testing. In particular, he talked about the misattribution potential in a complex microservice architecture where often intermediary results are cached.

Infrastructure 126

Infrastructure Metrics Architecture Efficiency 126

The Netflix TechBlog

OCTOBER 18, 2019

theme of the ML Platform meetup hosted at Netflix, Los Gatos on Sep 12, 2019. Contextual and Multi-armed Bandits enable faster and adaptive alternatives to traditional A/B Testing. In particular, he talked about the misattribution potential in a complex microservice architecture where often intermediary results are cached.

Infrastructure 100

Infrastructure Metrics Architecture Efficiency 100

SQL Server According to Bob

DECEMBER 18, 2018

Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. Testing shows that by using the Fua bit with the data, write request can reduce the I/O traffic by ~50% for a SQL Server, write-intensive workload. Starting with the Linux 4.18 4 Socket, TPCC. 9,108 – Old kernel.

Servers 90

Servers Media Cache Storage 90

HammerDB

JUNE 27, 2022

Also, when testing a database with a De-Witt clause, it was then possible to produce your own results without having to rely on a particular vendor to publish results of interest. Given the increasing importance of open source and the widespread use of HammerDB, the TPC adopted HammerDB in 2019 and now hosts the project on GitHub.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

SQL Performance

APRIL 18, 2022

Let’s look at some examples using the Stack Overflow 2010 database on SQL Server 2019 CU 14, with database compatibility set to 150. The low estimated cost of my test queries means we need to lower the cost threshold for parallelism to 1: EXECUTE sys. It’s important to remember the plan must be cached. sp_configure.

Cache 58

Cache Servers Database Testing 58

MachMetrics

JUNE 30, 2021

Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. John Mueller answered “YES” to this question in 2019, “site speed is definitely a ranking factor?”.

Cache 78

Cache Speed Google Website 78

SQL Performance

MAY 20, 2022

As in previous parts, most code examples use the Stack Overflow 2010 database on SQL Server 2019 CU 16 with the following additional nonclustered index: CREATE INDEX [ IX dbo. Let’s look at the plan cache: SELECT. [ text ] LIKE '%SomeValue%Test%'. Users Reputation ( DisplayName ) ] ON dbo. ) ; GO.

Cache 55

Cache Database Servers Testing 55

Rigor

SEPTEMBER 3, 2019

What you may be overlooking is that peak-event readiness is about more than just load testing or ensuring that your servers are up throughout a specific timeframe. They seem to have learned from their mistakes for Prime Day 2019.). STEP 4: Combine the Power of Load Testing and Synthetics. Stock level issues [E-commerce engine].

Website 74

Website Cache Ecommerce Traffic 74

SQL Performance

MARCH 22, 2022

In this first part, after a quick introduction, I look at the effects of simple parameterization on the plan cache. The aim is to reduce compilations by increasing cached plan reuse. Let’s look at an example, using the Stack Overflow 2010 database on SQL Server 2019 CU 14. Simple Parameterization. sp_configure. EXECUTE sys.

Cache 61

Cache Servers Database Code 61

Smashing Magazine

JULY 29, 2019

2019-07-29T14:00:59+02:00. 2019-07-29T13:06:57+00:00. The United Kingdom is ranked 34th out of 207 countries for broadband speed, but in July 2019 there was still a school in the UK without broadband. Let’s talk about caching. We’re going to check out Cache-Control. I Used The Web For A Day On A 50 MB Budget.

Cache 96

Cache Google Mobile Network 96

SQL Performance

MARCH 30, 2021

) ; My test environment is SQL Server 2019 CU9 on a laptop with 8 cores and 16GB of memory allocated to the instance. The test query returns the total number of questions and answers, grouped by month and year: WITH. See Myth: SQL Server Caches a Serial Plan with every Parallel Plan for details. MonthlyPosts AS. (

Cache 98

Cache Servers Operating System Processing 98

Smashing Magazine

OCTOBER 26, 2018

2019-04-29T18:34:58+00:00. I’m working on Varying Vagrant Vagrants , and have set up a test site with an URL [link]. We’ll also import posts from the wordpress.org Theme Review Teams repository so that we have some test data to work with. Let’s create a small test plugin. Denis Žoljom. 2018-10-26T13:45:46+02:00.

Cache 78

Cache Website Speed Database 78

SQL Performance

JUNE 8, 2022

As in previous parts, code examples use the Stack Overflow 2010 database on SQL Server 2019 CU 16 with the following additional nonclustered index: CREATE INDEX [ IX dbo. The text will normalize to the same parameterized form , allowing a cached prepared plan to be matched and reused. Let’s look at the plan cache: SELECT.

Cache 54

Cache Servers Database Processing 54

SQL Server According to Bob

MAY 19, 2019

There are a bunch of folks with compiler, linker, SQL Server code, testing and other disciplines who provided input. Testing shows that locking mechanisms, such as spin locks, start to become saturated when shared across 8 to 12 CPUs and where the physics become a direct contributor to partitioned design. IO Request Caches.

IoT 61

IoT Servers Development Cache 61

Rigor

NOVEMBER 7, 2019

Reading time 4 min The CPDoS attack that was discovered in October 2019 and the corresponding attention paid to it within the technology sphere brought to light an issue many of us overlook: the boundaries of our web applications have expanded, and that has increased the number of systems and services that must be monitored and secured.

Monitoring 40

Monitoring Performance Cache Ecommerce 40

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. The worldwide ASP 18 months ago was ~$300USD , so the average performance in the deployed fleet can be represented by a $300 device from mid-2019. So what did $150USD fetch in 2019?

Performance 124

Performance Network Cache Metrics 124

SQL Performance

SEPTEMBER 6, 2022

Testing environment. I happen to be using SQL Server 2019 CU16 but the details I’ll describe haven’t materially changed since partition level lock escalation was added to SQL Server 2008. SET NOCOUNT , XACT_ABORT ON ; -- Prevent plan caching for this procedure. -- See [link]. BEGIN TRANSACTION ; -- Test statement(s).

Database 98

Database Storage Testing Servers 98

Smashing Magazine

JUNE 26, 2019

2019-06-26T14:00:59+02:00. 2019-06-26T14:06:48+00:00. Instead, I suggest that web designers use another Google testing tool called Test My Site. Test My Site is a mobile page speed testing tool from Think with Google. Source: Test My Site ) ( Large preview ). Source: Test My Site ) ( Large preview ).

Website 110

Website Speed Mobile Design 110

SQL Performance

AUGUST 4, 2022

To recap: Normalization and decoding promote cached plan reuse. Code examples use the Stack Overflow 2010 database on SQL Server 2019 CU 16 with the following additional nonclustered index: CREATE INDEX [ IX dbo. [ This series: Part 1 | Part 2 | Part 3 | Part 4 | Part 5 | Part 6 ].

Servers 61

Servers Cache Database Availability 61

Alex Russell

DECEMBER 18, 2022

Without beating around the bush, our ASP 2019 device was an Android that cost between $300-$350, new and unlocked. These devices feature: Eight slow, big.LITTLE ARM cores (A75+A55, or A73+A53) built on last-generation processes with very little cache. These are depressingly similar specs to devices I recommended for testing in 2017.

Performance 113

Performance Network Mobile Latency 113

CSS - Tricks

JUNE 19, 2019

JavaScript housekeeping: 🗑️ Remove old & duplicate deps 🐥 Replace large deps w/small ones 🧐 Check you aren't over-polyfilling 🧽 Clean up A/B test configs ✂️ Code-splitting! — Addy Osmani (@addyosmani) May 31, 2019. Browsers do caching, silly. Stop complaining.

Cache 63

Cache Internet Internet Code 63

Smashing Magazine

APRIL 9, 2019

2019-04-09T12:30:59+02:00. 2019-04-29T18:34:58+00:00. They’d take the hit for the first site to use the file, but then it would sit in their local browser cache and downloads could be skipped for each subsequent site. Understanding Subresource Integrity. Understanding Subresource Integrity. Drew McLellan. Large preview ).

Website 57

Website Servers Code Best Practices 57

SQL Performance

MARCH 8, 2021

Posts ( PostTypeId ASC , CreationDate ASC ) INCLUDE ( AcceptedAnswerId ) ; The test queries return the number of questions with an accepted answer, grouped by month and year. They are run on SQL Server 2019 CU9 , on a laptop with 8 cores, and 16GB of memory allocated to the SQL Server 2019 instance.

Servers 95

Servers Tuning Architecture Processing 95

Enprowess

SEPTEMBER 7, 2021

Unit testing: Node.js has a unit testing framework called Jasmine, which allows unit testing of code during development. 12.9.0 – August 20, 2019; 16.8.6 – May 6, 2019. Caching of individual modules. Easy UI test cases. Server development: Node has in-built APIs. Therefore, Node.js

Open Source 52

Open Source Virtualization Programming Servers 52

The Morning Paper

DECEMBER 10, 2019

HotStorage 2019. At 0.4ns, we’re in the same ballpark as regular L1 cache reference latency. That makes sense, because the test ‘repeatedly deferenced a persistent pointer,’ so we’d expect everything to be in L1. A tale of two abstractions: the case for object space , Bittman et al., The last word.

Hardware 52

Hardware Virtualization Operating System Programming 52

KeyCDN

JULY 11, 2019

Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 This means we need to always be testing for different devices and connections. Take advantage of free website speed test tools , many of which have options to test on mobile. KB and the average mobile page is 1,683.5

Speed 52

Speed Website Mobile Latency 52

SQL Performance

NOVEMBER 4, 2021

AND SalesOrderID = - 2 ; -- Test query. For example, if we change the WHERE clause in the test query to SOH.SalesOrderID <= 55000, the adaptive threshold reduces from 1502.07 Still, there are some reasons to think this arrangement is deliberate and came about after due consideration and feedback from testing. SELECT SOH.

Servers 98

Servers Design Database Code 98

Smashing Magazine

JANUARY 21, 2021

Back in 2017 we built the entire site with Preact, but then have moved to React in 2019 — and use it along with a few APIs for search, comments, authentication and checkout. Back in 2017, the entire layout was built with Flexbox and rebuilt with CSS Grid and CSS Custom Properties in mid-2019.

Performance 145

Performance Cache Mobile Network 145

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. 2019-01-07T12:00:13+00:00. 2019-04-29T18:34:58+00:00. Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Vitaly Friedman. Quick Wins.

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. You can then mimic the 90th percentile’s experience for testing.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Alternatively, you can also use Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Now you have something measurable to test against.

Performance 145

Performance Cache Network Metrics 145